Door catch



Oct. 9, 1928. i,686,805

F. E. FORG noon cmcu Filed Feb. 24, 1923 Patented Oct. 9, 1928.

rannnarcxn' FORG, or nnn'mo'ron, MAssAcn'usEir'rs.

noon 'ca'rcn.

Application filed February 24, 1923.

This invention relates to a door catch of that character in which acatch member is located within a casmgand has one end normally projectedout therefrom by a-spring within the casing. i

The present invention has for its object to provide normal position byunlntentional movement of the catch member with respect to the casing. jThe particular features of the invention will be hereinafter pointed outin the claim at the end of this specification. c

In the drawings illustrating the preferred embodiment of the invention,Fig. 1 is an elevation of the improved door catch;

Fig. 2, a vertical section catch applied to a door; and V Fig. 3, across section on-line 3 3 ofFig. 1. Referring to the drawing, thedoorcatch comprises a metalcasing or shell 10 having an open end or mouth 12and a catch member 13 supported within the casingl'O to norm lly projectfrom the mouth 12. The casing is adapted to be inserted'into a hole inthe ace of a door 14 so that the open end. or mout of the casing issubstantially flush withthe face of the door.

In the illustrated constructiomthe catch member 13 comprises a; plungerhaving-a conical shaped nose 15. The plunger is screwedupon thethreaded'end of a bolt 16 projectingrearwardly through the rear end ofthe casing 10. The plunger 13 is yieldingly urged in a position in whichthe conical nose.15 projects from the mouth 12 of the casing, by acoiled spring 18 embracing the bolt 16 and having its opposite face ofthe plunger the casing 10. v I 7 Provision is made for retaining thecatch member 13 and also the bolt 16 in operative relation to the casing10 in order to prevent the plunger from becoming unscrewedfrom the bolt16 during the use of the door catch. For this pur ose, the rear end ofthe bolt may and pre erably will be squared as at 19 and arranged toslide in a square hole in the 13 and the rear end of plunger a novel,simple and efiicient door catch of the character described, in whichshowing the door r to adjust the compression on by inserting the spannerinto the slots 22, 24

threaded end of.

forward direction into aends abutting the rear 7 7 continued Serial No620,947.

' rear end of the casing, to thereby prevent.

of the bolt 16 with relation to the In order to prevent rotation of the13 with relation to the casing and rotation casing.

bolt, the casing 10 is provided with a finger I I or lug 22 arranged toextend into an axial slot 23 in the surface of the door catch or plunger13. The plunger may also be provided with a second slot 24 which,together with the slot 23, may be employed for the reception pf aspanner or similar tool for screwing'the plunger onto the threaded endof the bolt 16. The axial slot 22 while effectively' preventing rotationof .the plunger 13 upon the threaded. bolt 16 does not interfere withthe reciprocation of the plunger during the operation of the door catch.

The finger stamped directly shape illustrated in'Fig. 3 to form ayielding pawl engaging the axial slot 23 with sufiicient force toprevent unintentional rotation of the plunger during the use of the doorcatch 22 may and preferably will be from the casing'into the byfrictional contact with the jamb of'the door in opening and closing thesame, but which at the same time enables a' workman the coiled springand rotating the plunger, the spring pawl yielding sufficiently topermit'such'rotation.

' Y In'assembling the door catch, the plungerthe bolt 16 until thedelunger, serves to retain the coiled spring 18 I at the compression atwhich the door catch operates with maximum. efliciency, and in addition,

as has been pointed out, prevents the plunger from becoming unscrewedand of the door catch separated after use of the cdoor'catch. 7

described the invention, what the parts Having thus .is claimed is:

In a door catch of the character described, 7 in combination, a casing,a catch member having in its outer surface an axially extended slotandinsertible into said casing from one, end thereof and capable ofbeing rec'iprocated in said casing and of being manually rotatedthereinto adjust it with relation to the end of the casing, means Withinthe casing for supporting said catch member and upon which it may berotated, and a yielding member carried'by said casing and movable intoand out of said slot, said member being normally extended into said slotin operative relation to the catch member to restrain the latter frombeing unintentionally rotated and being moved out of saidslot and'intoinoperative relation'to the catch member'by manual rotation of thelatter.

In testimony whereof, I have signed my name to this specification. v p aFREDERICK E. F ORG.

